Naomi Watts' 'joy' at working with Bill Murray

Naomi Watts thinks it was a "joy" working with Bill Murray.

The 46-year-old actress starred alongside the legendary comedy actor in 'St. Vincent' and has admitted she was "nervous" about the role.

She said: "He's a special guy. I just felt like wherever he went on every day, wherever we were, there was a party around him.

"He was a joy. And I was nervous going into it because I hadn't really done anything comedically that was something that he would connect with. So I thought, 'Oh God, how am I going to prove myself here?' And I just stayed in character, pretty much (the whole time)."

Naomi's friendship with Bill has caused her a few headaches though, as she keeps getting people asking her for his phone number or to hand him scripts on their behalf.

Speaking on Jimmy Kimmel Live!, she said: "Now and again, I get a weird text message from him. And I didn't realise actually having his phone number is a big deal. He doesn't have an agent or any representatives of any kind, I don't think. So once people know you have the phone number, it's a hot commodity...

"Knowing that I would never give them (the phone number), they say, 'Can you send him this piece of material?' or 'Could you read this for Bill?' And I'm like, 'What do I look like? His agent?'"